Mechanical movement



J. R. JOHNSON.

MECHANICAL MOVEMENT. APPLICATION FILED MAY 29. 1919.

1,328,379. Patented Jan. 20, 1920.

UNITED STATES PATENT OFFICE.

JOSEPH R. JOHNSON, 0F LOUISVILLE, KENTUCKY.

MECHANICAL MOVEMENT.

Application filed May 29, 1919.

To all whom it may concern: I

Be it known that I, JOSEPH R. JOHNSON, a citizen of the United States,residing at 521 Lilie avenue, Louisville, in the county of Jefferson andState of Kentucky, have invented certain new and useful Improvements inMechanical Movements, of which the following is a specification.

The device which is the subject matter of the present application forpatent is designed for sifting powdered material and uniformly:spreading the same upon lthe surface to which the material is to beapplied. The device is intended more particularly for applying enamelingpowder to the surface of metal ware for enameling the same. It will beunderstood however, that the device is not limited to such use, but itmay, with equal facility, be employed for sifting or applying anypowdered material.

The invention has for its object to provide a very simple, inexpensiveand efficient device of the kind stated, and to this end it consists ina novel combination and arrangement of parts to be hereinafter describedand claimed.

In order that the invention may be better understood, reference is hadto the accompanying drawing forming a part of this specification, and insaid drawing,

Figure 1 is an elevation of the device, partly in section, and

Fig. 2 is a horizontal section on the line 22 of Fig. 1.

The preferred embodiment of the invention has been shown, but it will beunderstood that various changes and modifications may be made without adeparture from the spirit and scope of the invention as claimed,hereinafter.

Referring specifically to the drawing, 5 denotes housing from one end ofwhich extends a stem 6 carrying at its outer end sieve 7 containing thepowdered material to be distributed. In the housing is inclosed animpact member 8, the same being slidably supported on the bottomthereof. This member is adapted to be forced back and forth in thehousing to deliver blows against the ends thereof, one end of thehousing being struck when the member is slid in one direction, and theother end when it is slid in the opposite direction, I

The impact member 8, is operated by Specification of Letters Patent.

Patented Jan. 20, 1920.

Serial No. 300,536.

pin 9 extending from a crank 10 and working in a cam recess 11 in saidmember. The crank 10 is on a shaft 12 driven by a small, light electricmotor 13 supported in any suitable manner on top of the housing 5. Onthe end of the housing, opposite the end from which the sieve supportingstem 6 extends, is a handle 14 whereby the entire device may be heldwith one hand.

The recess 11 has diametrically opposite cam walls 15 against which thecrank pin 9 presses as it revolves in the direction indicated by thearrows in Fig. 2, and upon striking the cam surface to the left, theimpact member 8 is thrown in that direction against the correspondingend wall of the housing. When the crank pin engages the other camsurface, the impact member is thrown to the right against thecorresponding end wall of the housing. The blows thus deliveredalternately against the opposite walls of the housing shakes or vibratesthe housing, and as the stem 6 of the sieve 7 is rigidly attached to thehousing, the sieve is agitated and the powdered material is shaken outand evenly distributed.

At diametrically opposite points, the recess 11 has lateral extensions16 which are in advance of the cam surfaces 15. The purpose of theseextensions is to allow the im pact member 8 to rebound withoutinterfering with the crank pin 9 by striking it before it has traveledout of the way of the rebound. When the rebound takes place the crankpin has already passed into the extension, and hence it does notinterfere with the rebound of the impact member.

I claim:

1. A mechanism for imparting a vibratory motion to a body, saidmechanism comprising a reciprocatory impact member, a. support for saidmember, said support having end portions between which the impact memberworks, and. a revoluble member for operating the impact member todeliver blows alternately to the'aforesaid end portions of the support,the impact member having a recess in which the revoluble'memberrevolves, said recess having diametrically opposite cam walls. I

2. A mechanism for imparting a vibratorymotion to a body, said mechanismcomprising I reciprocatory impact member, a support for saidmember, saidsupport haw ing end portions between which the impact ally opposite camwalls and lateral extenmember works, and a revoluble member for sions inadvance of the cam walls into which operating the impact member todeliver the revoluhle member passes in its travel 10 blows alternatelyto the aforesaid end porbetween the cam surfaces.

5 tions of the support, the impact member In testimony whereof I aflixmy signahaving a recess in which the revoluble memture. her revolves,said recess having diametric- JOSEPH R. JOHNSON.

